Maine Cosmetologist Practice Exam 2025 - Free Cosmetology Practice Questions and Study Guide

Question: 1 / 400

What is the purpose of a patch test before applying hair color?

To check for color accuracy

To ensure even application

To identify potential allergic reactions

The purpose of a patch test before applying hair color is to identify potential allergic reactions. This test is crucial for determining whether a client has sensitivities or allergies to the chemicals present in hair dye. An allergic reaction can lead to severe skin irritation or more serious health issues; therefore, performing a patch test helps ensure the safety of the client before proceeding with a full-color application. By applying a small amount of the dye to a discreet area of the skin, the cosmetologist can monitor for any adverse reactions over the next 24 to 48 hours. This proactive approach helps protect the client from possible harm and ensures a more pleasant overall hair coloring experience.

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To assess hair texture compatibility

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